Eric Dane is revealing the devastating effects of his ALS diagnosis. The “Grey’s Anatomy” alum, 52, spoke about his health battle on “Good Morning America” Monday in his first interview since his diagnosis, telling Diane Sawyer that he now has only “one functioning arm.”

Eric Dane of Grey's Anatomy and Euphoria fame recently revealed a surprising silver lining to his recent ALS diagnosis. The actor spoke with Diane Sawyer in a Good Morning America interview that aired Monday.